利用干扰试井技术识别优势通道方法研究  

Identifying Dominant Channels Based on Interference Testing Technology

作　　者：张伟 ZHANG Wei(CNOOC Tianjin Branch,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《河北石油职业技术大学学报》2025年第1期27-31,共5页JOURNAL OF HEBEI PETROLEUM UNIVERSITY OF TECHNOLOGY

基　　金：国家科技重大专项(渤海油田加密调整及提高采收率油藏工程技术示范):2016ZX05058-001。

摘　　要：长期注水开发对储层的改造作用明显,储层物性参数发生较大变化,进而形成优势通道,严重影响油田的开发效果。因此,为准确识别优势通道,指导油田高含水期剩余油挖潜,利用干扰试井技术开展了优势通道识别方法研究。首先将形成优势通道的储层等效为两层无限大均质油藏,建立试井解释模型;然后根据不稳定渗流理论和压降叠加原理,得到观察井压力相应特征;最后通过压力半对数曲线,建立优势通道渗透率及厚度等参数计算方法。将研究结果应用于渤海L油田,验证了该方法的正确性,对治理优势通道工艺设计具有指导意义。Long term water injection development has a significant effect on reservoir transformation,causing significant changes in reservoir physical parameters,thereby forming dominant channels and seriously affecting the development effect of the oilfield.Therefore,in order to accurately identify dominant channels and guide the exploration of remaining oil potential during the high water cut stage of the oilfield,interference testing technology is used to conduct research on the identification method of dominant channels.Firstly,the reservoir that forms the dominant channels is equivalent to two infinite homogeneous reservoirs,and a well testing interpretation model is established;Then,according to the unstable percolation theory and the pressure drop superposition principle,the corresponding characteristics of the observed well pressure are obtained;Finally,a pressure semi-logarithmic curve is used to establish a calculation method for parameters such as permeability and thickness of the dominant channels.The application of the research results to Bohai L Oilfield has verified the correctness of this method,which has guiding significance for the process design of controlling dominant channels.

关 键 词：优势通道 干扰试井 叠加原理 半对数曲线 渤海L油田 

分 类 号：TE53[石油与天然气工程—油气田开发工程]